Cab-doob lock



oct. 28. 1924. Y Y Re. 15,937

, .l. c. FRn'Ts CAR DOOR LOCK Original Filed Aux-i1 8, 192.2

ATTORNEYS Reissued Oct. 28, 1924.

UNITED STATES y Re.15,937 PATENT OFFICE.

nuns o. Farms, or soaANToN, PENNSYLVANIA.

cnn-Doon Loox.

Original llo. 1,456,611, dated May V29, 192,3, Serial No. 5 50,597, led April 8, 1922. Application for reissue led August 6, 1924. Serial No. 730,544.

en of the United States, residing at Scrantcnnin the county of Lackawanna and State o ennsylvania, have invented a certain: new and useful Improvement in Car-Door Locks, of which improvement ythe following is a. specification.

My invention relates to locks for carv doors, and more particularly for the doors of box freight cars. Heretofore it has been the. practice tolock the doors of such cars partl bly means of the usual bolt or pin which isv t en fastened by a wire vand lead seal, to prevent removal. This means for securing the lock has, however, proved to be very inadeguate, as the wires and seals are lquite easi y broken and many thefts Vhave been committed by breaking the locks Yin this manner. The use of padlocksand keys has also been proposed, but this is. inconvenient and unsatisfactory, since the keys are often lost or find their way into the hands of dishonest employees, or other unauthorized persons, who thus obtain access to the cars.

The object of my invention is tov provide a car door lock of simple, strong, and durable construction, and having a sliding bolt adapted to be securely fastened by a trans-y verse rivet, with means for preventing the easy removal of said rivet.

The invention claimed is hereinafter fully set forth.

' In'the accompanying drawings: Figure 1 is a side elevation of a portion of "a box freight car, showing one form of my im'- proved lock, applied thereto; Fig. 2, a side view, in elevation, ofthelock upon a larger scale; Fig. 3, a transverse sectionfthrough a rtion of the car frame and car door, show.

mg the look partly in an-end elevation and in section; and Figs. 4 and 5, horizonta sections taken on the lines a-a and b-b, respectively,vof Fig. 3.

AIn the practice of my lnvention, referring descriptively to the .specific embodiment thereof which is herein exemplified, the lock comprises two portions, the housing portion,

adapted to be attached to the door, and the l,ket portion, adapted to be fastened .to a ied'part of the car body. or frame. IThe housing-portion is .preferably formed of a casting, 1., provided with lateral flanges l, for theY receptionof fastening bolts, 2, and

vhi-Dgrn/ opening through the full length of the casting for a sliding` bolt 3. The bolt, 3, may be provided with a transverse stop pin, 3, in the coredpassage 4, which is open at the back of the casting, as shown in Figs. 3 and 4, for the insertion of the stop pin, before the housing is bolted to the door, f4'. The stop pin limits the vertical or sliding movement, of the bolt within the casting. For the purpose of fastening the bolt in its lower or locking position, I provide a transverse rivet, or locking pin, 5, extending through openings in the casting and in the bolt, which openings register with each other in this position of the bolt, the rivet being then headed over at its end to securely fasten the ,bolt `and, prevent its removal. The rivet is preferably formed with a recess in its end to facilitate the operation of heading over the rivet upon the housing.

In order to hold the rivet `or locking pin during the riveting operation, I may provide a Harige or wall, 1c, formed integrally upon the casi-ng of the outer side of the head of the rivet, whereby a piece of iron or other wedge may be inserted between said Wall andv rivet head to act Tas a backing and permit one man tohead the rivet over quickly and eiiiciently. As' shownin the drawing, the wall, l, is joinedy at its outerend with the main body of the casing forming a verticalopening, 10, 'in which the wedge may be inserted. The wall, 1c, is also provided with an opening l1, in line with the rivet for permittingV the same to be inserted through the casing and sliding bolt.Y

Another feature of my improvement consists in providing means for protecting the headed over end ofl the rivet, such as the lugs, l", formed upon the casting, both above and below the end of the rivet, whereby it will be difiicult to obtain access to the rivet with a tool for the purpose of filing' or cutlting off the end of the same.

The bracket or keeper portion, 6, of the lock is shown as rigidly secured ,to the car sill, 8, beneath the car door, by bolts 9, said bracketI having en opening through which the bolt, 3, extends, when in locking position.- The bracket may be formed of acasting of any suitable shape or size. It will be obvious that when the car door is closed and locked, with the bolt securely heldin place by the rivet, it will be extremely, dif'- ficult for thieves to break the lock without making considerable noiseand disturbance,

which would betray their operation. When it is desired to open the car door by those duly authorized to do so, the headed over end of the rivet may be cut off by means of an ordinary cold chisel and hammer.

If desired, the bolt, 3 may also be secured by a Wire and seal connection passing through suitable holes in the bolt and in the housing or bracket.

I have illustrated and described herein what I now consider to be the preferred form of my invention. However, it is to be expressly understood that I do not limit myself thereto as many changes may be made 1n points of detail and other embodiments resorted to Without deviating from the true spirit and scope of my invention.

I claim as my invention and desire to secure by Letters Patent:

l.k A car-door lock, lcomprising a housing adapted t0 be secured to the door and havinga longitudinal passage therethrough and a transverse hole intersecting said passage, a bracket adapted to be secured to the car sill and having an opening adapted to register with said passage, a locking bolt adapted to occupy said passage and opening and having a transverse hole therethrough and a rivet adapted to be passed through said holes and to be headed over to prevent its Withdrawal.

2. A car-door lock, comprising a housing adapted to be secured to the door and having a longitudinal passage therethrough and a transverse hole intersecting said passage, a bracket adapted to be secured to the car sill and having an opening adapted to register with said passage, a locking bolt adapted to occupy said passage and opening and having atransverse hole therethrough, a rivet adapted to be passed through said holes and to be headed over to prevent its Withdrawal, and lugs on said housing to protect the headed over end of the rivet and render it difficult of access.

3. A car door lock comprising a housing having a. longitudinal passage therethrough and a transverse hole intersecting said passage, a bracket having an opening adapted to register with said passage, a locking bolt adapted to occupyisaid passage and opening and having a transverse hole therethrough adapted to register with said first mentioned transverse hole, a rivet adapted to be passed through said holes and be headed over, a

. plate or flange on said housing formed with Y an Opening to receive a Wedge or similar tool having a longitudinal passage therethrough and a transverse hole intersecting said passage, a bracket having an opening adapted 4to register with said passage, a locking bolt ter With said passage, a locking bolt adapted to occupy said passage and opening and having a hole therethrough adapted to register with said first mentioned hole, a rivet adapted to be passed through said holes and be headed over, and means onV said housing adapted to receive a wedge or similar tool to provide an abutment for said rivet While being headed over.

6. A car door lock comprising a housing having a passage therethrough and a transverse hole intersecting said passage, a keeper having an opening adapted to register with said passage, a locking bolt adapted to occupy said passage and opening and having a transverse hole therethrough ladapted to register with said first mentioned transverse hole, a rivet adapted to be passed through said holes and be headed over, anda Wall formed integrally with said housing adapted to receive a Wedge or similar tool to provide an abutment for said rivet while being headed over, said Wall being provided with an opening in alignment with said trans` verse hole in the housing to enable the rivet `to be inserted through the said opening verse holeintersecting said passage, a keeper having an openingadapted to register Wlth said passage, a locking bolt adapted to occupy said passage and opening and having a transverse hole therethrough adaptedto register with said first mentioned transverse hole, a rivet adapted to be passed through said holes and be headed over, anda wall on said housing provided with a passage in which a wedge is adapted to be inserted between said wall and rivet head to act as a backing to vhead .the rivet.

8. VA car door lock comprising a housing having a passage therethrough and a transverse hole intersecting said passage, a. keeperv having an opening adapted to register with said passage, a locking holt adapted` tooocupy said passage and opening and having a vtransverse hole therethrough adapted to register with Said rs'tmentoned transverse alignment with said transverse hole 'in the housing to enable the rivet to be inserted 10 through said opening into the transverse holes in said housing and locking bolt when said holes are in register.

In testimony whereof I have signed this specification.

JAMES C. FRITTS. 

